400164640

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{22133}}^1$

素因数の和:22261

約数の個数: 48

約数和(自身を含む): 953798328

約数和(自身を除く): 553633688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1808, 2260, 3616, 4520, 9040, 18080, 22133, 44266, 88532, 110665, 177064, 221330, 354128, 442660, 708256, 885320, 1770640, 2501029, 3541280, 5002058, 10004116, 12505145, 20008232, 25010290, 40016464, 50020580, 80032928, 100041160, 200082320, 400164640]

約数ペア:

[(1, 400164640), (2, 200082320), (4, 100041160), (5, 80032928), (8, 50020580), (10, 40016464), (16, 25010290), (20, 20008232), (32, 12505145), (40, 10004116), (80, 5002058), (113, 3541280), (160, 2501029), (226, 1770640), (452, 885320), (565, 708256), (904, 442660), (1130, 354128), (1808, 221330), (2260, 177064), (3616, 110665), (4520, 88532), (9040, 44266), (18080, 22133)]